Re: [PATCH v11 01/13] dma-buf: introduce initial file I/O infrastructure

[Pavel Begunkov]

On 10/14/26 13:30, Christian König wrote:
> On 10/14/26 13:01, Pavel Begunkov wrote:
...>> +static void dma_buf_io_kill_map(struct dma_buf_io_ctx *ctx)
> > +{
> > +	struct dma_buf_io_map *map;
> > +
> > +	dma_resv_assert_held(ctx->dmabuf->resv);
> > +
> > +	map = rcu_dereference_protected(ctx->map,
> > +				dma_resv_held(ctx->dmabuf->resv));
> > +	if (!map)
> > +		return;
> > +
> > +	rcu_assign_pointer(ctx->map, NULL);
> > +	percpu_ref_kill(&map->refs);
> > +	/* make sure the map is not visible via ctx->map */
> > +	synchronize_rcu_expedited();
> > +	wait_for_completion(&map->drained);
> > +	dma_buf_io_map_release(map);
> > +}
> > +
> > +int dma_buf_io_init_map(struct dma_buf_io_ctx *ctx, struct dma_buf_io_map *map,
> > +			struct sg_table *sgt)
>
> You somehow forgotten the kerneldoc I asked for here.

Ah yes, missed that function. I'll add it but perhaps in a separate
patch, if you don't mind, depending whether we queue it for 7.4.

> Apart from that still looks good, but I had only time to skim over it.
--
Pavel Begunkov